Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.
#74300
A
why
B
that
C
when
D
where
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Scientists still wonder ______ cloning will help or harm us and _____ it is leading us.
#68782
A
that; what
B
whether; where
C
if; that
D
whether; how
regular exercise is very important.It’s never a good idea to exercise too close to bedmme.
#67375
A
If
B
As
C
Although
D
Unless
It was _____that we went camping on the mountain.
#67505
A
such nice weather
B
so nice a weather
C
such a nice weather
D
too nice weather